bucket_policies

Creates, updates, deletes or gets a bucket_policy resource or lists bucket_policies in a region

Overview

Name	bucket_policies
Type	Resource
Description	Applies an Amazon S3 bucket policy to an Amazon S3 bucket. If you are using an identity other than the root user of the AWS-account that owns the bucket, the calling identity must have the ``PutBucketPolicy`` permissions on the specified bucket and belong to the bucket owner's account in order to use this operation. If you don't have ``PutBucketPolicy`` permissions, Amazon S3 returns a ``403 Access Denied`` error. If you have the correct permissions, but you're not using an identity that belongs to the bucket owner's account, Amazon S3 returns a ``405 Method Not Allowed`` error. As a security precaution, the root user of the AWS-account that owns a bucket can always use this operation, even if the policy explicitly denies the root user the ability to perform this action. When using the ``AWS::S3::BucketPolicy`` resource, you can create, update, and delete bucket policies for S3 buckets located in Regions that are different from the stack's Region. However, the CloudFormation stacks should be deployed in the US East (N. Virginia) or ``us-east-1`` Region. This cross-region bucket policy modification functionality is supported for backward compatibility with existing workflows. If the [DeletionPolicy attribute](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html) is not specified or set to ``Delete``, the bucket policy will be removed when the stack is deleted. If set to ``Retain``, the bucket policy will be preserved even after the stack is deleted. For example, a CloudFormation stack in ``us-east-1`` can use the ``AWS::S3::BucketPolicy`` resource to manage the bucket policy for an S3 bucket in ``us-west-2``. The retention or removal of the bucket policy during the stack deletion is determined by the ``DeletionPolicy`` attribute specified in the stack template. For more information, see [Bucket policy examples](https://docs.aws.amazon.com/AmazonS3/latest/userguide/example-bucket-policies.html). The following operations are related to ``PutBucketPolicy``: + [CreateBucket](https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateBucket.html) + [DeleteBucket](https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucket.html)
Id	awscc.s3.bucket_policies

Fields

get (all properties)

Name	Datatype	Description
bucket	string	The name of the Amazon S3 bucket to which the policy applies.
policy_document	object	A policy document containing permissions to add to the specified bucket. In IAM, you must provide policy documents in JSON format. However, in CloudFormation you can provide the policy in JSON or YAML format because CloudFormation converts YAML to JSON before submitting it to IAM. For more information, see the AWS::IAM::Policy [PolicyDocument](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-iam-policy.html#cfn-iam-policy-policydocument) resource description in this guide and [Access Policy Language Overview](https://docs.aws.amazon.com/AmazonS3/latest/dev/access-policy-language-overview.html) in the *Amazon S3 User Guide*.
region	string	AWS region.

list (identifiers only)

Name	Datatype	Description
bucket	string	The name of the Amazon S3 bucket to which the policy applies.
region	string	AWS region.

For more information, see AWS::S3::BucketPolicy.

Methods

Name	Resource	Accessible by	Required Params
create_resource	bucket_policies	INSERT	Bucket, PolicyDocument, region
delete_resource	bucket_policies	DELETE	Identifier, region
update_resource	bucket_policies	UPDATE	Identifier, PatchDocument, region
list_resources	bucket_policies_list_only	SELECT	region
get_resource	bucket_policies	SELECT	Identifier, region

SELECT examples

get (all properties)

Gets all properties from an individual bucket_policy.

SELECT
  region,
  bucket,
  policy_document
FROM awscc.s3.bucket_policies
WHERE
  region = 'us-east-1' AND
  Identifier = '{{ bucket }}';

list (identifiers only)

Lists all bucket_policies in a region.

SELECT
  region,
  bucket
FROM awscc.s3.bucket_policies_list_only
WHERE
  region = 'us-east-1';

INSERT example

Use the following StackQL query and manifest file to create a new bucket_policy resource, using stack-deploy.

Required Properties

/*+ create */
INSERT INTO awscc.s3.bucket_policies (
  Bucket,
  PolicyDocument,
  region
)
SELECT
  '{{ bucket }}',
  '{{ policy_document }}',
  '{{ region }}';

All Properties

/*+ create */
INSERT INTO awscc.s3.bucket_policies (
  Bucket,
  PolicyDocument,
  region
)
SELECT
  '{{ bucket }}',
  '{{ policy_document }}',
  '{{ region }}';

Manifest

version: 1
name: stack name
description: stack description
providers:
  - aws
globals:
  - name: region
    value: '{{ vars.AWS_REGION }}'
resources:
  - name: bucket_policy
    props:
      - name: bucket
        value: '{{ bucket }}'
      - name: policy_document
        value: {}

UPDATE example

Use the following StackQL query and manifest file to update a bucket_policy resource, using stack-deploy.

/*+ update */
UPDATE awscc.s3.bucket_policies
SET PatchDocument = string('{{ {
    "PolicyDocument": policy_document
} | generate_patch_document }}')
WHERE
  region = '{{ region }}' AND
  Identifier = '{{ bucket }}';

DELETE example

/*+ delete */
DELETE FROM awscc.s3.bucket_policies
WHERE
  Identifier = '{{ bucket }}' AND
  region = 'us-east-1';

Permissions

To operate on the bucket_policies resource, the following permissions are required:

Create

s3:GetBucketPolicy,
s3:PutBucketPolicy

Read

s3:GetBucketPolicy

Update

s3:GetBucketPolicy,
s3:PutBucketPolicy

Delete

s3:GetBucketPolicy,
s3:DeleteBucketPolicy

List

s3:GetBucketPolicy,
s3:ListAllMyBuckets